Although gigahertz-scale free-carrier modulators have been demonstrated in silicon, intensity modulators operating at terahertz speeds have not been reported because of silicon's weak ultrafast nonlinearity. We have demonstrated intensity modulation of light with light in a silicon-polymer waveguide device, based on the all-optical Kerr effect-the ultrafast effect used in four-wave mixing. Dire...

Silicon photonics shows tremendous potential for the development of the next generation of ultra fast telecommunication, tera-scale computing, and integrated sensing applications. One of the challenges that must be addressed when integrating a "photonic layer" onto a silicon microelectronic circuit is the development of a wafer scale optical testing technique, similar to that employed today in ...

The use of optical fiber which offers large bandwidth in the telecommunication sector has shown a lot of developments in the last decade mainly in television cables and cell phone cables. But these are not fully efficient and to do this, the fiber should allow multiple access which means allowing various users to send and receive data in the fiber at the same time. There are three main schemes ...

Ultrashort pulsed lasers, operating through the phenomenon of mode-locking, have had a significant role in many facets of our society for 50 years, for example, in the way we exchange information, measure and diagnose diseases, process materials, and in many other applications. Recently, high-quality resonators have been exploited to demonstrate optical combs. The ability to phase-lock their mo...

We report the development of two liquid waveguide based photonic elements for use in reconfigurable photonic systems. This work demonstrates the ability to couple light from a conventional optical fiber to an adaptable liquid-core/liquid-cladding waveguide and back again to an optical fiber(s) enabling us to take advantage of both liquid- and solid-state photonic modalities. We demonstrate and ...

This paper deals with the Optical connections with FPGAs are possible. Here Flow routing method with wavelength conversion is studied, discussed, analyzed and simulated in VHDL Language. The function of the proposed circuit is to reduce the amount of corrupted flows for the first time. With the emergence of new broadband telecommunication services and constantly increasing bandwidth demand, fix...

For efficient and very high capacity network for Telecommunication and Data services the SONET/SDH network is used. The Service providers are keenly interested to find automatic ways of commissioning the channels associated with the SONET/SDH. The TDMA technology is used in the SONET/SDH network by which the High speed data communication and telecommunication traffic is handled. Due to very hig...

Capacitive coupling and direct shuttling of charges in nanoscale plasmonic components across a dielectric spacer and through a conductive junction lead to excitation of significantly different dipolar and charge transfer plasmon (CTP) resonances, respectively. Here, we demonstrate the excitation of dipolar and CTP resonant modes in metallic nanodimers bridged by phase-change material (PCM) sect...

Optical telecommunication is at the heart of today’s internet and is currently enabled by the transmission of intense optical signals between remote locations. As we look to the future of telecommunication, quantum mechanics promise new ways to be able to transmit and process that information. Demonstrations of quantum key distribution and quantum teleportation using multi-photon states have be...